HOME FAQs BOOKS JOBS: Help Wanted Suggestions      you are here: Hotline/Forum => Letter 22032

---

TT-P-1757 types

+++

Hello,

I'm trying to find TT-P-1757 [link is to spec at TechStreet] ty 2 class C do you know what the diffrence is between Ty1 and Ty2 cl C so far all I can find is ty 1 bulk or ty2 Spray but not with the class C.

Thank You,

Brian Mooney
precision machining - Canoga Park, California, USA

---

+++

Brian, have you gotten a copy of TT-P-1757 yet? It's at http://assist2.daps.dla.mil/quicksearch/, and fill in the "TT-P-1757" in the top box. You'll notice that it says Type I - Volatile content consists of non-photochemically reactive solvents Type II - Volatile organic compound (VOC) content less than or equal to 340 grams/liter (gm/l) (2.8 lb./gal) and that Class C refers to Chromate based corrosion-inhibitors. The Qualified Products List has long been cancelled, so you'll have to call around to find out who makes what. But at least having the spec may help. Good luck!

Lee Gearhart metallurgist East Aurora, New York